Fastening device for window sashes



Patented Nov. 22, l'lti.

ALBERT C. BEIERLE, OF SAGINAW, MICHIGAN.

FASTENING DEVICE FOR W'INDON SASHES.

Application filed October 5, 1925- Scral No. 60,489.

This invention is a window fastener. The improvement pertains more particularly Vto certain novel constructions and arrangement of parts in a window fastener whereby the objects of my invention are attained.

These objects are, irst, to provide a lock adapted to be seated u )on the top rail of the lower sash of a win ow, as distinguished from locks heretofore affixed by being mortised into the side rail of the sash. My lock is provided with a key-actuated latch member that is normally retracted within the housing of the lock, but when projected outwardly by the removable key is adapted to engage a recess in the vface of the adjacent rail of the upper window sash.

My improvement, therefore, isespecially adapted to lock the side rails of the upper and the lower sash together, as distinguished from those locking devices heretofore employed, in which the sash rail is locked to the frame of the window.

The upper and lower sash may be so locked together that neitherof them can be moved,

" and the locking device is adapted to be easily applied, since the lock does not require to be imbedded or mortised into the window sash, as has heretofore been common.

Another advantage of my improved construction is that the latch when projected, acts in a manner similar to a post or strut, the upper end of the latch being received in the mortise of the upper sash and the lower end of the latch being firmly seated on the base member of the locking device, so that when it .is attempted to force the window open the latch does not have shearing or transverse bending strains imposed upon it. It acts like a compression member or strut between the lower sash and the upper sash.

Furthermore, my invention provides an auxiliary means for yieldingly holding the upper sash against the lower sash, thereby not only making the window tighter, but also holding the two sash in such relative position that the latch when projected will properly enter the mortise in the adjoining sash.

My improvement also provides for removing the locking handle, thus making it difficult for a person outside the window to unfasten the lock and release the window, even though the glass be first cut away or broken.

With the foregoing and certain other obin view, which will appear later' the specii'ications, my invention comprises the devices described and claimed and the equivalents thereof.

Fig. 1 is a-perspective view of my improved locking device, seated upon the top rail and above a side rail of the lower sash of a window and engaging the side rail of the upper sash.

Fig. 2 is a perspective view showing the latch projected.

Fig. 3 is a perspective view of the latch plate. j

l? ig. 4 is a side view of the latch with its cover removed.

Fig. 5 is a front view of the latch. l

Fig. 6 is a detail showing the removable key and eccentric by which the latch'is actuated.

As is clearly shown inthe drawings, the

device in its preferred form comprises a housing 1 having a base 2 adapted to be fixed to the top rail 3 of the lower sash, as shown. in Fig. 1. rEhe housing l has a recess l shaped to receive an outwardly tiltable latch 5, the lower end of which is received in a pocket 6 of the base 2.

The latch can be tilted by means of an eccentric cam 7, which operates in opening 8 of the latch 5. rlhe lower end of the latch is preferably pivoted, as at 9, loosely enough to permit the lower end of the latch to seat itself in the pocket 6. lhen it is attempted to pull the sash 10 down, the downward thrust of the upper sash 10 is transmitted through the latch 5 in the direction of the arrow of Fig. et. The pivot 9 is merely for holding the latch in projected or retracted` position and the eccentric cam 7 and its shaft 11 are not subjected to any strain when it is attempted to force the window open.

To hold the upper sash 10 snugly against the top rail 3 of the lower sash I provide a latch plate 12 adapted to be mortised into the rail of the upper sash 10. The.` latch plate 12 has a slot 13, through which may pass the head of a T bolt 14. This bolt is normally held retracted in a recess la of the housing by means of a spring 15. When bolt 14 has been pushed through the slot 13 and slightly turned it engages the back face of the latch plate 12, thereby pulling the housing 1 and the lower sash against the upper sash l0. The sash are thus tightened and rattling and leakage of cold air are' preh vented.`

an angular end 16, and a socket key 17 is provided to operate eccentric cam 7.

TWhen the key is removed, latch 5 can not be readily withdrawn from its engagement with the slot 1S of plate 12.

By the means above described l have produced a simple, inexpensive window lock adapted to easily and quickly fasten together the upper and lower sash of a window, so that neither can be moved.

lf it is attempted toV force either sash, there is no likelihood of breaking the latch because all the strain is carried by the latch plate l2 'which acts merely as a strut or post.` The other parts of the lock are not subjected to any breaking strain. The device has a neat appearance and is well adapted to be manufactured cheaply in quantity production.

Having thus described my invention, what I claim and desire to secure by Let ters Patent is:

l. lhlocking device for a window having an upper and aV lower sash, comprising` in combination, a housing havinga base adapted'to be seated upon the top rail of the lower sash, said base formed with a pocket, an outwardly tiltable latch mounted in said housing and seated in said pocket, said latch formed with a cam-receiving opening, tilting' means for said latch, comprising,- an eccentric cam operatively received in said opening, a cam shait formed with an angular end, a removable socket key therefor, a slotted latch plate mortised into the sidel rail of the upper sash, and means for yieldingly holding the upper and lower sash together, comprising a spring-retracted T-bolt carried by said housing and releasably received in a slot of said latch plate, for the purposes set forth.

2. il. lockingr device for a window having," an upper and a lower sash, comprising in combination, a housinghaving a base Yformed with a pocket and adapted to be seated upon the top rail of the lower sash, an outwardly tiltable latch mounted in said housing and seated in said pocket, means Yfor actuating said latch, a slotted latclrplate mortised into the side rail of the upper sash, and means for yieldingly holding the upper and lower sash together, comprising a spring-retracted 'l' -bolt carried by said housing and releasably received in a slot of said latch plate.

.in testimony whereof, l afiix my signature.

ALBERT C. BEIERLE.

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